目标站点：https://maoyan.com/board/6

# coding:utf8

import requests, re, json

from requests.exceptions import RequestException

# from multiprocessing import Pool

# 获取页面

def get_one_page(url):

    try:

        resp = requests.get(url)

        if resp.status_code == requests.codes.ok:

            return resp.text

        else:

            return None

    except RequestException:

        return None

# 页面解析

def parse_one_page(html):

    pattern = re.compile('<dd>.*?board-index.*?>(\\d+)</i>.*?data-src="(.*?)"'

                         '.*?name"><a.*?">(.*?)</a>.*?star">(.*?)</p>.*?releasetime">(.*?)</p>'

                         '.*?</dd>', re.S)

    items = re.findall(pattern, html)  # result is a list,made up of tuples

    for item in items:

        # 生成字典

        yield {

            'index': item[0],

            'img_url': item[1],

            'title': item[2],

            'stars': item[3][3:],

            'releasetime': item[4],

        }

# 将爬取到的内容写入到文件中

def write_file(content):

    with open('content.txt', 'a', encoding='utf-8') as f:

        str_content = json.dumps(content, ensure_ascii=False)  # 转换成字符串

        f.write(str_content + '\n')

        f.close()

# 主函数

def main(offset):

    url = "https://maoyan.com/board/6/?offset=" + str(offset)

    html = get_one_page(url)

    for item in parse_one_page(html):

        write_file(item)

        print(item)

if __name__ == "__main__":

    # 请求5次

    for i in range(5):

        main(i * 10)